Home / 13,230.28-19,845.36-3,996.28

Finding the Fourth Proportional to 13,230.28, 19,845.36 and 3,996.28

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Solution

The fourth proportional to 13,230.28, 19,845.36 and 3,996.28 is: 5,994.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,230.28 : 19,845.36 = 3,996.28 : x
  2. Step 2: Convert to fraction form
    13,230.28/19,845.36 = 3,996.28/x
  3. Step 3: Cross multiply
    13,230.28x = 19,845.36 × 3,996.28
  4. Step 4: Simplify right side
    13,230.28x = 79,307,615.26
  5. Step 5: Solve for x
    x = 79,307,615.26/13,230.28
  6. Step 6: Final answer
    x = 5,994.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.